a double replacement chemical equation is shown.

__mno 2 + __hcl → __mncl 2 + __h 2o + __cl 2

what are the coefficients that should be placed in the blanks to make sure the law of conservation of matter is upheld?
1,4,1,2,1
2,4,2,4,1
1,2,1,2,1
2,3,1,2,1

the reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. the mixture is cooled and compressed, causing the ammonia gas to condense into a liquid. the liquefied ammonia is separated and removed. the unreacted nitrogen and hydrogen are then recycled back into the reactor .

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

the dependant variable is spilled water

the independent is the heat

16

explanation:

the marks go by 4s